| Long: version |
| Short: V |
| Help: Show version number and quit |
| Category: important curl |
| --- |
| Displays information about curl and the libcurl version it uses. |
| |
| The first line includes the full version of curl, libcurl and other 3rd party |
| libraries linked with the executable. |
| |
| The second line (starts with "Protocols:") shows all protocols that libcurl |
| reports to support. |
| |
| The third line (starts with "Features:") shows specific features libcurl |
| reports to offer. Available features include: |
| .RS |
| .IP "alt-svc" |
| Support for the Alt-Svc: header is provided. |
| .IP "AsynchDNS" |
| This curl uses asynchronous name resolves. Asynchronous name resolves can be |
| done using either the c-ares or the threaded resolver backends. |
| .IP "brotli" |
| Support for automatic brotli compression over HTTP(S). |
| .IP "CharConv" |
| curl was built with support for character set conversions (like EBCDIC) |
| .IP "Debug" |
| This curl uses a libcurl built with Debug. This enables more error-tracking |
| and memory debugging etc. For curl-developers only! |
| .IP "gsasl" |
| The built-in SASL authentication includes extensions to support SCRAM because |
| libcurl was built with libgsasl. |
| .IP "GSS-API" |
| GSS-API is supported. |
| .IP "HSTS" |
| HSTS support is present. |
| .IP "HTTP2" |
| HTTP/2 support has been built-in. |
| .IP "HTTP3" |
| HTTP/3 support has been built-in. |
| .IP "HTTPS-proxy" |
| This curl is built to support HTTPS proxy. |
| .IP "IDN" |
| This curl supports IDN - international domain names. |
| .IP "IPv6" |
| You can use IPv6 with this. |
| .IP "Kerberos" |
| Kerberos V5 authentication is supported. |
| .IP "Largefile" |
| This curl supports transfers of large files, files larger than 2GB. |
| .IP "libz" |
| Automatic decompression (via gzip, deflate) of compressed files over HTTP is |
| supported. |
| .IP "MultiSSL" |
| This curl supports multiple TLS backends. |
| .IP "NTLM" |
| NTLM authentication is supported. |
| .IP "NTLM_WB" |
| NTLM delegation to winbind helper is supported. |
| .IP "PSL" |
| PSL is short for Public Suffix List and means that this curl has been built |
| with knowledge about "public suffixes". |
| .IP "SPNEGO" |
| SPNEGO authentication is supported. |
| .IP "SSL" |
| SSL versions of various protocols are supported, such as HTTPS, FTPS, POP3S |
| and so on. |
| .IP "SSPI" |
| SSPI is supported. |
| .IP "TLS-SRP" |
| SRP (Secure Remote Password) authentication is supported for TLS. |
| .IP "TrackMemory" |
| Debug memory tracking is supported. |
| .IP "Unicode" |
| Unicode support on Windows. |
| .IP "UnixSockets" |
| Unix sockets support is provided. |
| .IP "zstd" |
| Automatic decompression (via zstd) of compressed files over HTTP is supported. |
| .RE |
